Intended for analog and digital satellite receivers, this single low noise block converter regulator (LNBR) is a monolithic linear and switching voltage regulator, specifically designed to provide the power and the interface signals to an LNB down converter via coaxial cable. The A8291 requires few external components, with the boost switch and compensation .
▪ 2-wire serial I2C™ -compatible interface: control (write) and status (read) ▪ LNB voltages (16 programmable levels) compatible with all common standards ▪ Tracking switch-mode power converter for lowest dissipation ▪ Integrated converter switches and current sensing ▪ Provides up to 500 mA load current ▪ Static current limit circuit allows full current at startup and 13→18 V output transition; reliably starts wide load range ▪ Push-pull output stage minimizes 13→18 V and 18→13 V output transition times for highly capacitive loads ▪ Adjustable rise/fall time via external timing capacitor ▪ Bu.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | A8290 |
Allegro MicroSystems |
Single LNB Supply and Control Voltage Regulator | |
2 | A8290 |
AiT Semiconductor |
LED DRIVER | |
3 | A8292 |
Allegro MicroSystems |
Dual LNB Supply and Control Voltage Regulator | |
4 | A8293 |
Allegro MicroSystems |
Single LNB Supply and Control Voltage Regulator | |
5 | A82 |
Tyco Electronics |
20 TO 250 MHz CASCADABLE AMPLIFIER | |
6 | A8205SLH |
Allegro MicroSystems |
LOW-DROPOUT REGULATORS . HIGH EFFICIENCY | |
7 | A821 |
Secos |
PNP Plastic Encapsulated Transistor | |
8 | A821 |
JIANGSU CHANGJIANG |
PNP Transistor | |
9 | A821S |
Rohm |
2SA821S | |
10 | A8220SLH |
Allegro MicroSystems |
LOW-DROPOUT REGULATORS . HIGH EFFICIENCY | |
11 | A8222SLH |
Allegro MicroSystems |
LOW-DROPOUT REGULATORS . HIGH EFFICIENCY | |
12 | A8226SLM |
Allegro MicroSystems |
LOW-DROPOUT REGULATORS . HIGH EFFICIENCY |